O-(2,4,6-tri-O-acetyl-3-O-methyl-β-D-glucopyranosyl)-(1->3)-O-(2,4,6-tri-O-acetyl-β-D-glucopyranosyl)-(1->4)-<3,6-di-O-acetyl-α-D-glucopyranose 1,2-(2,3,4,2',3',4',6'-hepta-O-acetyl-α,α-trehalos-6-yl-orthoacetate)> 在
4 A molecular sieve 、
三氟化硼乙醚 作用下,
以
二氯甲烷 、
氯仿 为溶剂,
反应 96.0h,
以39.3%的产率得到O-(2,4,6-tri-O-acetyl-3-O-methyl-β-D-glucopyranosyl)-(1->3)-O-(2,4,6-tri-O-acetyl-β-D-glucopyranosyl)-(1->4)-O-(2,3,6-tri-O-acetyl-β-D-glucopyranosyl)-(1->6)-(2,3,4-tri-O-acetyl-α-D-glucopyranosyl)-(1<->1)-(2,3,4,6-tetra-O-acetyl-α-D-glucopyran.)